Doesn't matter to me. I am pretty picky about other attributes of a woman, and have some pretty specific tastes in a lot of areas, concerning body types and stuff, but hair color is not one of them. I like blondes and brunettes equally. (and redheads too..but I might draw the line at purple or orange hair) One thing I don't like to see is platinum blond hair with black roots. lol. If you are going to dye your hair, learn how to color the roots too! I don't care if it is their real color, or out of a bottle, but it has to look real.
Happens to be a brunette. Amongst my favorite providers there are several Blondes, a pair of Redheads and one Raven Haired beauty that puts them all to shame.....and it has nothing to do with the color of her hair.